Checkpoint ALR 4 is the best value gravel bike in the line-up. Kitted out with a 300 Series Alpha Aluminium frame, the Checkpoint ALR 4 is just as responsive on chunky gravel roads as it is smooth on the tarmac. Loads of features like tubeless-ready wheels, a SRAM Apex 11-speed drivetrain and mechanical disc brakes make Checkpoint ALR 4 the perfect ride for ease of entry into the wide world of gravel.
| Frame | 300 Series Alpha Aluminium, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142x12 mm thru-axle |
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| Fork | Checkpoint, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle |
| Weight | 56 - 9.80 kg / 21.61 lbs (with TLR sealant, no tubes) |
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| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb). |
| Shifter | SRAM Apex, 11-speed |
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| Rear derailleur | SRAM Apex 1, long cage, 42T max cog |
| *Crank |
Size: 49 SRAM Apex 1, 40T, DUB Wide, 165 mm length |
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Size: 52 SRAM Apex 1, 40T, DUB Wide, 170 mm length |
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Size: 54, 56 SRAM Apex 1, 40T, DUB Wide, 172.5 mm length |
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Size: 58, 61 SRAM Apex 1, 40T, DUB Wide, 175 mm length |
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| Bottom bracket | SRAM DUB, T47 threaded, internal bearing |
| Cassette | SRAM PG-1130, 11-42, 11-speed |
| Chain | SRAM PC-1130, 11-speed |
| Max. chainring size | 1x: 44T, 2x: 50/34 |
| Hub front | Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle |
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| Skewer front | Bontrager Switch thru axle, removable lever |
| Hub rear | Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Rim | Bontrager Paradigm, Tubeless Ready, 24-hole, 21 mm width, Presta valve |
| Spokes | 14 g stainless steel, black |
| Tyre | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700 x 40 c |
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | See service manual |
| *Saddle |
Size: 49, 52 Bontrager Verse Comp, steel rails, 155 mm width |
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Size: 54, 56, 58, 61 Bontrager Verse Comp, steel rails, 145 mm width |
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| Seatpost | Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length |
| *Handlebar |
Size: 49 Bontrager Elite Gravel, 38 cm width |
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Size: 52 Bontrager Elite Gravel, 40 cm width |
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Size: 54, 56 Bontrager Elite Gravel, 42 cm width |
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Size: 58, 61 Bontrager Elite Gravel, 44 cm width |
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| Handlebar tape | Bontrager Supertack Perf tape |
| *Stem |
Size: 49 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
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Size: 52, 54 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length |
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Size: 56, 58 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length |
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Size: 61 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length |
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| Brake | Tektro C550 mechanical disc brake, dual piston, flat mount |
| Brake rotor | Tektro, CentreLock, 160 mm |
| Rotor size | Max brake rotor sizes: 160 mm front and rear |
